The best quality voice codec is a lossless: FLAC, Wavpack or plain PCM.
Don't use HE-AAC. there's no need and may change the sound in an unwanted way.
As of iTunes 9, iPhone OS 3.1 and Fall 2009 iPods, support for HE-AAC playback is included.
Typical configurations are 16/32 kHz, 22.05/44.1 kHz or 24/48 kHz sampling rates, while 8/16 or even 48/96 kHz are also possible.
and a format that will be playable in 40 years
WAV is the most adequate choice then.
If you had to choose, which codec would you recommend and with what parameters? I'm not looking for the smallest file size; just a size more manageable without quality loss and a format that will be playable in 40 years. Appreciate any input, thanks.
-V8 --resample 24